AFL clubs in Victoria, Queensland and NSW will be given three options for next year: to field their own teams, strike an alignment or spread their players across multiple clubs.
The NEAFL’s nine clubs — Brisbane, Gold Coast, GWS and Sydney as well as Aspley Hornets, Canberra Demons, Redland Bombers, Southport Sharks and Sydney University — will be invited to join the VFL.
...
The AFL said second-tier football in 2021 would be a “year of transition’’ reflecting the impact of a reduced AFL soft cap, the level of AFL club investment and resources allocated to men’s and women’s football programs, any Player CBA revisions and any associated impact on player list sizes.
At the moment that's up to 25 clubs
Brisbane Lions
Gold Coast
GWS
Sydney
Aspley
Canberra
Redland
Southport
Sydney Uni
Box Hill (Hawthorn)
Casey (Melbourne)
Coburg
Collingwood
Essendon
Footscray (Western Bulldogs)
Frankston
Geelong
Carlton (new CFC reserves?)
Preston (possibly reforming as a standalone)
North Melbourne
Port Melbourne
Richmond
Sandringham (St Kilda)
Werribee
Williamstown
At least some of Aspley, Canberra, Redland, Southport and Sydney Uni will probably instead opt to return to their state league. Plus some more of the AFL clubs and VFL standalones may form affiliations.